Analysis

  • max time kernel
    377s
  • max time network
    439s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23-02-2023 10:34

General

  • Target

    DHL_AWB_NO_#907853880911_pdf .exe

  • Size

    18KB

  • MD5

    16b03e4e5bc0ff1dbef3918cfad2b735

  • SHA1

    fcba7690aa8b5fd59530018117c9a23d1d9479d8

  • SHA256

    43b957e57a959571b4ee4dedf823b4122dd2774b1290daa5848a4ea830673124

  • SHA512

    99e5980733a2c1416e0cd5d498549ef6dbc1b52ecbb7c9fdcd828dc1f3c14e3f9fd80bece1e393ae1b87a8084936c2356e213cb0771d25fd3c68eabf13de0c79

  • SSDEEP

    192:HaTdQS53M58auD28GSALhtGfygJrBhIf3jdZ:6TuS53uuDV2LhtGfygJ8fTd

Malware Config

Extracted

Family

purecrypter

C2

http://45.84.1.117/3478/Uwdznaoe.png

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5846767138:AAHbrIUF1epdWlFQ2_64LCd8vdF121y1XGE/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL_AWB_NO_#907853880911_pdf .exe
    "C:\Users\Admin\AppData\Local\Temp\DHL_AWB_NO_#907853880911_pdf .exe"
    1⤵
    • Accesses Microsoft Outlook profiles
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:2172
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zodubwav.j03.ps1

    Filesize

    1B

    MD5

    c4ca4238a0b923820dcc509a6f75849b

    SHA1

    356a192b7913b04c54574d18c28d46e6395428ab

    SHA256

    6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

    SHA512

    4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

  • memory/2172-121-0x00000000002B0000-0x00000000002BA000-memory.dmp

    Filesize

    40KB

  • memory/2172-123-0x0000000005540000-0x00000000055F4000-memory.dmp

    Filesize

    720KB

  • memory/2172-124-0x00000000056F0000-0x000000000570A000-memory.dmp

    Filesize

    104KB

  • memory/2172-125-0x00000000057E0000-0x0000000005802000-memory.dmp

    Filesize

    136KB

  • memory/2172-126-0x0000000005810000-0x0000000005B60000-memory.dmp

    Filesize

    3.3MB

  • memory/2172-122-0x00000000024B0000-0x00000000024C0000-memory.dmp

    Filesize

    64KB

  • memory/2172-166-0x0000000006E20000-0x0000000006FE2000-memory.dmp

    Filesize

    1.8MB

  • memory/2172-165-0x0000000006B30000-0x0000000006B80000-memory.dmp

    Filesize

    320KB

  • memory/2172-164-0x0000000006480000-0x000000000648A000-memory.dmp

    Filesize

    40KB

  • memory/2172-163-0x0000000006520000-0x00000000065B2000-memory.dmp

    Filesize

    584KB

  • memory/2172-162-0x00000000065E0000-0x0000000006ADE000-memory.dmp

    Filesize

    5.0MB

  • memory/2172-161-0x0000000005400000-0x0000000005430000-memory.dmp

    Filesize

    192KB

  • memory/2172-154-0x00000000024B0000-0x00000000024C0000-memory.dmp

    Filesize

    64KB

  • memory/2652-129-0x0000000004880000-0x00000000048B6000-memory.dmp

    Filesize

    216KB

  • memory/2652-137-0x0000000008090000-0x0000000008106000-memory.dmp

    Filesize

    472KB

  • memory/2652-152-0x00000000096B0000-0x0000000009D28000-memory.dmp

    Filesize

    6.5MB

  • memory/2652-153-0x00000000082E0000-0x00000000082FA000-memory.dmp

    Filesize

    104KB

  • memory/2652-136-0x0000000008160000-0x00000000081AB000-memory.dmp

    Filesize

    300KB

  • memory/2652-155-0x0000000004500000-0x0000000004510000-memory.dmp

    Filesize

    64KB

  • memory/2652-156-0x0000000004500000-0x0000000004510000-memory.dmp

    Filesize

    64KB

  • memory/2652-135-0x00000000077B0000-0x00000000077CC000-memory.dmp

    Filesize

    112KB

  • memory/2652-134-0x0000000007720000-0x0000000007786000-memory.dmp

    Filesize

    408KB

  • memory/2652-133-0x0000000007020000-0x0000000007086000-memory.dmp

    Filesize

    408KB

  • memory/2652-132-0x0000000004500000-0x0000000004510000-memory.dmp

    Filesize

    64KB

  • memory/2652-131-0x0000000004500000-0x0000000004510000-memory.dmp

    Filesize

    64KB

  • memory/2652-130-0x00000000070F0000-0x0000000007718000-memory.dmp

    Filesize

    6.2MB